A223059 Number of nX5 0..3 arrays with all horizontally or vertically connected equal values in a straight line, and new values 0..3 introduced in row major order.
51, 19360, 9383963, 4606719559, 2266567594841, 1115636153544055, 549172612438350029, 270334270159303305523, 133074373792931796543737, 65507037468442048450168351, 32246421320132829050759287877
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..0..0..0..0....0..0..0..1..0....0..0..0..0..1....0..0..0..1..0 ..1..2..1..1..1....2..2..3..0..2....2..3..2..1..0....2..2..2..0..1 ..2..3..2..3..3....1..0..3..2..0....0..0..1..3..3....0..1..1..2..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Comments